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y l0. KNCHBL.

Platform Rocking-Chair.

Ne. 224,340. Patented Feb. 10,1880. l

".PErans. noto-umocmvyan. wAsHmaron. u c,

UNITED STATES PATENT OFFICE.

CONRAD KNCHEL, OF BALTIMORE,

MD., Assienoanv MEsNE Assien- MENT, IO RAND MANUFACTURING COMPANY,OF SAME PLACE.

PLATFORM RocKlNe-CHAIR.

SPECIFICATION formingkpart of Letters Patent No. 224,340, dated February 10, 1880.

Application led September 16, 1879.

To all whom it may concern l Be it known that I, CONRADKNCHEL, of Baltimore city, State of Maryland, have i111 vented certain new and useful Improvements in Platform Rocking-Chairs; and I hereby declare the same to be fully, clearly, and exto the accompanying drawings, in,which-.

Figure l is a perspective viewrof` the chair; Fig. 2, aside elevation, enlarged, ofthe mechanism for retaining the chair upon the platform. f

My invention relates to that form of rocking-chairs in' which the chair-body is provided with rockers which are mounted upon an independent platform; and it consists in a pecu' liar form of device for holding the rockers in place and maintaining the chair-body normally at a proper angle of inclination. A

In the accmpanying drawings., A is the chair-body, l1aving rockers a a, provided with iianges a' a', which come upon theoutside of the side pieces ofthe platform B. The latter is provided with lateral braces Vb.`

Opposite that portion of the rockers, which itis desired shall be in contactfwith the platform when the chairis unoccupied, are securely bolted, on the inside of the` rockers,metallic bars C, to which are pivoted, at c, links e. 'Ihe pivotal connection between the bars C and links e is'practically'on a line with the bearing-surface of the rockers. vThe links .passV through guides ]),that'are bolted on the inefficient in operation.

side ofthe platform, and are provided at their lower ends with perforatedV lugs f, through which the springs E pass.v These springs are securedat F tothe platform, and, being coiled three or four times about pinsG, their ends `are connected, as described, with the links e. actly described as follows, reference-being had As thechair-body ,is rocked back and forth the links epassyin practically right lines,

through the guides l),`and AJthe tension of the spring causes the chairbody normally to rest",

in the position shown.

The device is simplein construction, not liable to get out of repair, and is thoroughly What I claim ,is- The combination, substantially as hereinbefore described. of the rocking-frame provided with pivoted 4links c, attached substantially t on the line of the bearing-surfaces of the rockers, with the base B, provided with guides D, in which the `links are snugly fitted and slide in substantially perpendicular lines, and the rsprings E, sliding freely'through lugs f on the links e, whereby the rockinginotion is limited and lateral `and longitudinal motion of the rockers on the base prevented, as set forth.

Witness my hand this 12th day ofz September, 1879.

CONRAD KNCHEL.

Witnesses Y R. D. WILLLAJns,

FRANK B. SLOAN. 

